To enable a muscle contraction, tropomyosin must change conformation, uncovering the myosin-binding site on an actin molecule and allowing cross-bridge formation. This can only happen in the presence of calcium, which is kept at extremely low concentrations in the sarcoplasm. If present, calcium i...
ATP analogs and muscle contraction: mechanics and kinetics of nucleoside tri- phosphate binding and hydrolysis. Biophys. J. 74:3044-3058.Regnier M, Lee DM and Homsher E (1998) ATP analogs and muscle contraction: mechanics and kinetics of nucleoside triphosphate binding and hydrolysis. Biophys J ...
This molecule not only supplies the energy for muscle contraction, but for all energetic processes in the cell. ATP is created through the process of cellular respiration. Muscle cells mainly do aerobic respiration, but can also do anaerobic respiration if the energetic demands outpace oxygen ...
关键词:肌肉收缩,ATP浓度变化,化学动力学,鞭毛拍击,动力蛋白,机械 化学偶联 THETHEORETICALSTUDIESONTHECHANGEoF ATP’SCONCENTRATIoNINMUSCLECoNTRACTIoNAND THEFLAGELLARBEATING ABSTRACT Every movementof livingorganisms suchasmuscle contraction beating ofthe flagella or cilia,chromosomecopy and segregation andcell divis...
Results Microarray transcriptome profiling revealed that genes involved in muscle contraction, carbohydrate and lipid metabolism, and ion transport and balance were significantly decreased in sensitive skin. These altered genes could account for the abnormal muscle contraction, decreased ATP amount in ...
Maximum contractile filament movement per ATP used in muscle contraction is ∼1.3 nm not 13 nmMaximum contractile filament movement per ATP used in muscle contraction is ∼1.3 nm not 13 nmdoi:10.1016/j.ijbiomac.2005.09.005C
ATP produced an opposite effect on the tonic muscle m. cruralis and increased the force of its contraction. Adenosine produced an inhibitory effect on the force of m. cruralis contration. In this case, 8-SPT also eliminated the effect of adenosine, but did not change the effect of ATP. ...
Why does muscle contraction make most of your body heat? Describe the processes involved in the contraction and relaxation of muscles. Why do muscle cramps occur after vigorous exercise? How does creating ATP take less energy than using it? How does making ATP take less energy than...
triphosphoric acid, C10H12N5O4H4P3O9, formed especially aerobically by the reaction of ADP and an orthophosphate during oxidation, or by the interaction of ADP and phosphocreatine or certain other substrates, and serving as a source of energy for physiological reactions, especially muscle contraction...
What is the role of ATP during muscle contraction? ATP (adenosine triphosphate) has been called the energy currency of the cell. Briefly outline the cycle by which energy is stored in and released from ATP. Explain the importance of the phosphate bond ...